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83 lines
2.8 KiB
83 lines
2.8 KiB
OpenWrt (modification):
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Patch the default configuration file with the tiny memory
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configuration example from Unbound documentation. This is the best
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starting point for embedded routers if one is not going to use UCI.
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--- a/doc/example.conf.in
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+++ b/doc/example.conf.in
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@@ -19,6 +19,76 @@ server:
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# verbosity number, 0 is least verbose. 1 is default.
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verbosity: 1
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+ ############################################################################
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+ # MEMORY CONTROL EXAMPLE
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+ # In the example config settings below memory usage is reduced. Some ser-
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+ # vice levels are lower, notable very large data and a high TCP load are
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+ # no longer supported ... are exceptional for the DNS.
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+ # (http://unbound.net/documentation/unbound.conf.html)
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+ ############################################################################
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+
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+ # Self jail Unbound with user "unbound" to /var/lib/unbound
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+ # The script /etc/init.d/unbound will setup the location
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+ username: "unbound"
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+ directory: "/var/lib/unbound"
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+ chroot: "/var/lib/unbound"
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+
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+ # The pid file is created before privleges drop so no concern
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+ pidfile: "/var/run/unbound.pid"
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+
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+ # no threads and no memory slabs for threads
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+ num-threads: 1
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+ msg-cache-slabs: 1
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+ rrset-cache-slabs: 1
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+ infra-cache-slabs: 1
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+ key-cache-slabs: 1
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+
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+ # don't be picky about interfaces but consider your firewall
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+ interface: 0.0.0.0
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+ interface: ::0
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+ access-control: 0.0.0.0/0 allow
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+ access-control: ::0/0 allow
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+
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+ # this limits TCP service but uses less buffers
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+ outgoing-num-tcp: 1
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+ incoming-num-tcp: 1
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+
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+ # use somewhat higher port numbers versus possible NAT issue
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+ outgoing-port-permit: "10240-65335"
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+
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+ # uses less memory but less performance
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+ outgoing-range: 60
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+ num-queries-per-thread: 30
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+
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+ # exclude large responses
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+ msg-buffer-size: 8192
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+
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+ # tiny memory cache
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+ infra-cache-numhosts: 200
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+ msg-cache-size: 100k
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+ rrset-cache-size: 100k
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+ key-cache-size: 100k
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+ neg-cache-size: 10k
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+
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+ # gentle on recursion
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+ target-fetch-policy: "2 1 0 0 0 0"
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+ harden-large-queries: yes
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+ harden-short-bufsize: yes
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+
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+ # DNSSEC enable by removing comments on "module-config:" and "auto-trust-
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+ # -anchor-file:" The init script will copy root key to /var/lib/unbound.
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+ # See package documentation for crontab entry to copy RFC5011 results back.
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+ #module-config: "validator iterator"
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+ #auto-trust-anchor-file: "/var/lib/unbound/root.key"
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+
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+ # DNSSEC needs real time to validate signatures. If your device does not
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+ # have power off clock (reboot), then you may need this work around.
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+ #domain-insecure: "pool.ntp.org"
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+
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+ ############################################################################
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+ # Resume Stock example.conf.in
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+ ############################################################################
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+
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# print statistics to the log (for every thread) every N seconds.
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# Set to "" or 0 to disable. Default is disabled.
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# statistics-interval: 0
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